Non-custodial
Who holds itYour own contract
Who decidesYou alone
Admin keyNone
FeeNone
StatusOn the Sepolia testnet, not yet audited
Testnet live
The Cold Library · est. 2026
Keep what is yours.
Carry on what you meant.
A perpetual exhibit for your projects. A perpetual plaque for you. Show the world only what you choose. The deeper shelves are guarded by an AI warden you set up: pass its trial, and you inherit what the one before you left behind.
Cold
Seeds kept at minus eighteen degrees can still be sown decades later. Your work, your words and what you believe can keep here too: not faded, not rewritten.
Library
Freezing is not locking away. A library catalogues, shelves and lends, so the right people can find what you left and carry it on.
What you can have here
An exhibit, a plaque, a warden.
3 · For projects
Perpetual Exhibit
A standing exhibit for a project or a life of work: what it is, why it matters, who carries it on, and notes left for whoever takes over.
2 · For people
Perpetual Plaque
A plaque for a person: who they are, what they cared about, what they made. The people they recognise can read more, and light a lamp.
5 · For your will
A Warden
An AI agent that stands at the door. It answers with your own words, asks what only the right people would know, and hands over what you left for them.
Three layers
Show what you choose. Keep the rest for the right people.
Every exhibit and every plaque has the same three layers.
LAYER 1
Public
What you choose to show anyone: a name, a line, the work, the links. Nothing else is shown.
AnyoneLAYER 2
Recognised
Letters, stories, notes for whoever carries on, where things are kept. Locked behind your warden.
Only people your warden recognisesLAYER 3
Sealed
Things kept for later, sealed on your own machine. Opened on a date you choose, or when your keepers agree.
Two of your keepers, togetherThe trial
Pass the warden. Inherit what was left.
Wealth here means what a person leaves behind: letters, know-how, a project to carry on, a title, directions to anything set aside, and crypto assets in their own Cold Vault. The library never takes custody of any of it.
You write
What to show everyone, and what to leave for the people who matter: a letter, a story, notes for a successor.
You set the test
A few questions only the right people can answer. The answers never leave your computer; they become the key.
The warden asks
Visitors talk to your warden. It does not hint, does not bargain, and cannot be paid.
They receive
What you left them, the right to light a lamp and leave a word, a badge such as successor, and directions to anything you set aside.
B4 · The Cold Vault
What is left can be real assets, too.
Keep crypto assets in a Cold Vault: a smart contract that belongs to you, not to us. You decide who receives what share, and when. You can take everything back at any time. If you go silent, your keepers confirm, a veto window passes, and each heir claims their own share with their own wallet.
On display
Two examples, both fictional.
Try the warden. The example answers are printed on the page.
Floor 6 · Department of Continuance
A will changes form. It does not have to fade.
Drag the years forward. The same sentence moves from something to do, to advice, to something carried on.
Visit the departmentYears since it took effect 0 yearsStage: Binding
“Keep the website online. Renew the domain every year.”
Binding · 0–2 yAdvisory · to 10 yCarried on
Outside the windows
A lake, a snowline, a forest.
The library stands where the cold does the work. The lake freezes every winter and keeps a clear surface for reading the sky. Above the snowline, snow stays and slowly becomes ice. At the edge of the grounds a young spruce forest grows in rows, the way the Future Library in Norway grows the paper for 2114. Nothing here is in a hurry.
Why cold
Floor directory
Where things are kept.
Floor 7 · Register of Librarians
Become a librarian.
Librarians hang exhibits, review applications, look after wardens and translate. It takes about a minute, mostly clicks, and there is no test. Your number is yours alone, and it is not given out in order.
Founding Librarian
FloorAll of them
Since2026-10-04
DutyKeeps the lights low and the rules short.
On duty